Here are some ways to interrupt someone in a conversation that will allow you to interject and make your point while still being polite to the other members of the conversation.
Excuse me for butting in but…
2. Sorry for interrupting but…
3. Just a moment, I’d like to…
4. Can I just butt in for a second?
5. I’m sorry to interrupt, but…
6. Excuse me (name), may I add to that …?
7. Excuse me. Could I talk to you for a minute?
8. Do you mind if I just say…
9. If I could just come in here. I think…
10. If I can just stop you for a moment …
11. Can I add something here?
12. May I interrupt for a second?
13. Before you go on, I’d like to say something…
14. Can I just mention something?
15. Can I just say something here?
* Impolite Ways to Interrupt Someone
1. What are you talking about?
2. Wait a minute!
3. What was that?
